When you ask "What number is halfway between 30 and 699?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=30 and Y=699.
To find the number halfway between 30 and 699, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 699 into our formula, we get:
(30 + 699)/2 = 364.5
Thus, the number halfway between 30 and 699 is 364.5.
To check that our answer is correct, we subtract 30 from 364.5 and subtract 364.5 from 699 and compare the two numbers:
364.5 - 30 = 334.5
699 - 364.5 = 334.5
As you can see, the halfway number is 334.5 higher than 30 and 334.5 lower than 699. Therefore, our halfway between answer of 364.5 above is correct.
Halfway Between
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Halfway Between 30 and 700
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